As you might know that the 2014 r4i sdhc dual core flashcart kernel has been updated to the V3.4b recnently . With the newest kernel , it can suppor more functions and play games more smoothly. This card comes with many striking features,such as support RTS, RTG ,cheat function and so on.It is worthwhile to buy one .Here is the official one : 2014 r4i sdhc dual core flashcart

Here is the tutorial about how to use this flashcart real time save function to backup games .